package collection;

import sun.java2d.pipe.SpanIterator;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;

public class GenericDemo {
    public static void main(String[] args) {
        Collection<Point> c=new ArrayList<>();
        c.add(new Point(1,2));
        c.add(new Point(2,3));
        c.add(new Point(3,4));
        c.add(new Point(4,5));
        c.add(new Point(6,7));
        Iterator<Point> it=c.iterator();
        while (it.hasNext()){
            Point p=it.next();
            System.out.println(p);
        }
        for (Point p:c){
            System.out.println(p);
        }


        /*
        Collection<Point> c=new ArrayList<>();
        c.add(new Point(1,5));
        c.add(new Point(2,4));
        c.add(new Point(3,3));
        c.add(new Point(4,2));
        Iterator<Point> it=c.iterator();
        while (it.hasNext()){
            Point p=it.next();
            System.out.println(p);
        }
        for (Point p:c){
            System.out.println(p);
        }

        Collection<String> c=new ArrayList<>();
        c.add("one");
        c.add("two");
        c.add("three");
        c.add("fore");
        Iterator<String> it=c.iterator();
        while (it.hasNext()){
            String str=it.next();
            System.out.println(str);
        }
        for (String str:c){
            System.out.println(str);
        }

         */

    }
}
